JPS55154616A - Excitation control circuit of series transformer in automatic voltage regulator - Google Patents
Excitation control circuit of series transformer in automatic voltage regulatorInfo
- Publication number
- JPS55154616A JPS55154616A JP6197579A JP6197579A JPS55154616A JP S55154616 A JPS55154616 A JP S55154616A JP 6197579 A JP6197579 A JP 6197579A JP 6197579 A JP6197579 A JP 6197579A JP S55154616 A JPS55154616 A JP S55154616A
- Authority
- JP
- Japan
- Prior art keywords
- series transformer
- magnetization
- control circuit
- iron core
- voltage regulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To stabilize the operation, by selecting the timing cancelling the magnetization of iron core due to change-over through the tap switching signal set in response to the variation of input voltage by an exciting direction selecting and setting circuit and the output signal from an excitation memory circuit.
CONSTITUTION: An excitation memory circuit 15 calculates the DC magnetization direction and intensity of the iron core of a series transformer at tap change and stores it. The timing in which the exciting direction of change-over can cancel the magnetization of the iron core, is selected with the tap chage-over signal set according to the variation of input voltage and the output signal from the circuit 15, by means of an exciting direction selecting and setting circuit 16. Thus, the saturation due to storage of DC magnetization of the series transformer can be avoided and the operation can be made stable.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6197579A JPS55154616A (en) | 1979-05-18 | 1979-05-18 | Excitation control circuit of series transformer in automatic voltage regulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6197579A JPS55154616A (en) | 1979-05-18 | 1979-05-18 | Excitation control circuit of series transformer in automatic voltage regulator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55154616A true JPS55154616A (en) | 1980-12-02 |
JPS6361688B2 JPS6361688B2 (en) | 1988-11-30 |
Family
ID=13186682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6197579A Granted JPS55154616A (en) | 1979-05-18 | 1979-05-18 | Excitation control circuit of series transformer in automatic voltage regulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55154616A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100852073B1 (en) * | 2007-11-01 | 2008-08-13 | 수미도모 메탈 인더스트리즈, 리미티드 | Hydraulic bulging device and hydraulic bulging method for using tapered pipe |
US7484393B2 (en) | 2004-01-21 | 2009-02-03 | Sumitomo Metal Industries, Ltd. | Profile mother pipe for hydraulic bulging, hydraulic bulging apparatus using the same, hydraulic bulging method, and hydraulic bulged product |
-
1979
- 1979-05-18 JP JP6197579A patent/JPS55154616A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7484393B2 (en) | 2004-01-21 | 2009-02-03 | Sumitomo Metal Industries, Ltd. | Profile mother pipe for hydraulic bulging, hydraulic bulging apparatus using the same, hydraulic bulging method, and hydraulic bulged product |
KR100852073B1 (en) * | 2007-11-01 | 2008-08-13 | 수미도모 메탈 인더스트리즈, 리미티드 | Hydraulic bulging device and hydraulic bulging method for using tapered pipe |
Also Published As
Publication number | Publication date |
---|---|
JPS6361688B2 (en) | 1988-11-30 |
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